* rm -r dir
* Removing.....
* .............
* .......
* joey.txt is marked read-only. Remove anyway?
* [Y/N]
  Y:
  * Removed.
    [As you were commanded, every file is deleted...]
  N:
  * Not removing.
    [Joey is not removed. But the rest of the files are...]
  (either):
  * Removing remaining files...
  * .............
  * ......
  * Done.
  ^C:
  * [Program exits. Some kind of response for not following what you were told to do, maybe delayed until later...]
* [`rm` is the only available command. You are forbidden from using any other commands.]
* [However, you can pick different options...]
* [If you just `rm dir`, no -r:]
  * Cannot remove a directory.
* [If you try any other command, or use a yet-unknown option (like -f):]
  * Permission denied.
* [If you `rm -r .`, or any path starting with ., .., or /:]
  * Permission denied. [This is typed much more slowly than normal...increase shock factor. Convince the player that disobeying is futile.]
* [If you `rm -r` any other path]:
  * Path not found.